import math
x=int(input())
print(math.ceil((2000-x)/200)) import math math x=int(input()) x int(input()) int input() input print(math.ceil((2000-x)/200)) print math.ceil((2000-x)/200) math.ceil math ceil (2000-x)/200 2000-x 2000 x 200 x=int(input()) int(input()) x
import math
x=int(input())
print(math.ceil((2000-x)/200))